Inventor · disambiguated record
William D. Duncan
Also filed as: DUNCAN CAROLYN L · DUNCAN JR WILLIAM DAVID · DUNCAN WILLIAM D · DUNCAN WILLIAM DAVID
150 granted patents·71 pending applications·1,494 citations·filing 1974–2020
99Inventor score
Files withELWHA LLC202DUNCAN WILLIAM D7DUNCAN CREATIONS INC3CALDEIRA KENNETH G2DUNCAN WILLIAM DAVID2
Top patents by PatentIndex Score
221 records- 0199US9840992B2Fuel injector system and method for making air-filled diesel dropletsELWHA LLC·Filed 2015·Granted Dec 12, 2017·16 cites·34 claims
- 0299US9123250B2Systems and methods for reporting real-time handling characteristicsELWHA LLC·Filed 2013·Granted Sep 1, 2015·139 cites·38 claims
- 0399US8849523B1Systems and methods for detecting soil characteristicsELWHA LLC·Filed 2013·Granted Sep 30, 2014·126 cites·12 claims
- 0498US9915438B2System and methods for regulating an environmental variable within a target zone having multiple inhabitantsELWHA LLC·Filed 2015·Granted Mar 13, 2018·33 cites·32 claims
- 0598US9878786B2System and method for operation and management of reconfigurable unmanned aircraftELWHA LLC·Filed 2015·Granted Jan 30, 2018·33 cites·35 claims
- 0698US9878787B2System and method for operating unmanned aircraftELWHA LLC·Filed 2015·Granted Jan 30, 2018·53 cites·23 claims
- 0798US9457666B2Method and apparatus for supplying auxiliary electrical power to an electric or hybrid vehicleCALDEIRA KENNETH G·Filed 2012·Granted Oct 4, 2016·155 cites·44 claims
- 0898US9321357B2Method and apparatus for supplying auxiliary electrical power to an electric or hybrid vehicleCALDEIRA KENNETH G·Filed 2012·Granted Apr 26, 2016·129 cites·50 claims
- 0997US9902491B2Reconfigurable unmanned aircraft systemELWHA LLC·Filed 2015·Granted Feb 27, 2018·39 cites·33 claims
- 1097US9474265B2Methods and systems for directing birds away from equipmentELWHA LLC·Filed 2012·Granted Oct 25, 2016·23 cites·29 claims
- 1197US9468272B1Smart cane with extensions for navigating stairsELWHA LLC·Filed 2015·Granted Oct 18, 2016·18 cites·41 claims
- 1296US9844983B2Systems and methods for anticipatory tire pressure controlELWHA LLC·Filed 2016·Granted Dec 19, 2017·5 cites·35 claims
- 1396US9775337B2Methods and systems for directing birds away from equipmentELWHA LLC·Filed 2012·Granted Oct 3, 2017·19 cites·12 claims
- 1496US9456648B2Systems and methods for helmet liner evaluationELWHA LLC·Filed 2015·Granted Oct 4, 2016·8 cites·34 claims
- 1595US9733355B2Systems and methods for detecting soil characteristicsELWHA LLC·Filed 2017·Granted Aug 15, 2017·13 cites·35 claims
- 1695US9511634B2Systems and methods for anticipatory tire pressure controlELWHA LLC·Filed 2014·Granted Dec 6, 2016·9 cites·32 claims
- 1795US9265192B2Systems and methods for detecting soil characteristicsELWHA LLC·Filed 2014·Granted Feb 23, 2016·22 cites·34 claims
- 1895US9240628B2Multi-elevational antenna systems and methods of useELWHA LLC·Filed 2013·Granted Jan 19, 2016·17 cites·42 claims
- 1994US9384645B1System and method for impact prediction and proximity warningELWHA LLC·Filed 2015·Granted Jul 5, 2016·21 cites·35 claims
- 2094US8477402B2Photonic modulation of a photonic band gapDUNCAN WILLIAM DAVID·Filed 2010·Granted Jul 2, 2013·16 cites·53 claims
- 2193US10371814B2Systems and methods for detecting soil characteristicsELWHA LLC·Filed 2018·Granted Aug 6, 2019·6 cites·20 claims
- 2293US9286794B2Pedestrian warning systemELWHA LLC·Filed 2013·Granted Mar 15, 2016·15 cites·56 claims
- 2393US9002537B2Managed electric vehicle traction battery systemELWHA LLC·Filed 2013·Granted Apr 7, 2015·22 cites·44 claims
- 2492US10006994B2Systems and methods for detecting soil characteristicsELWHA LLC·Filed 2017·Granted Jun 26, 2018·11 cites·30 claims
- 2592US9648914B2Systems for active coupling of airbagsELWHA LLC·Filed 2014·Granted May 16, 2017·12 cites·35 claims
- 2692US9208753B2Unauthorized viewer detection system and methodELWHA LLC·Filed 2012·Granted Dec 8, 2015·13 cites·46 claims
- 2791US9618614B2Systems and methods for detecting soil characteristicsELWHA LLC·Filed 2015·Granted Apr 11, 2017·7 cites·42 claims
- 2891US9591902B1Smart cane with extensions for navigating stairsELWHA LLC·Filed 2016·Granted Mar 14, 2017·11 cites·45 claims
- 2991US9508264B2System and method for management of airspace for unmanned aircraftELWHA LLC·Filed 2014·Granted Nov 29, 2016·62 cites·35 claims
- 3091US9193402B2Structural assessment, maintenance, and repair apparatuses and methodsELWHA LLC·Filed 2013·Granted Nov 24, 2015·20 cites·26 claims
- 3191US8600110B1Unauthorized viewer detection system and methodELWHA LLC·Filed 2012·Granted Dec 3, 2013·15 cites·47 claims
- 3290US10449445B2Feedback for enhanced situational awarenessELWHA LLC·Filed 2016·Granted Oct 22, 2019·10 cites·29 claims
- 3390US10134291B2System and method for management of airspace for unmanned aircraftELWHA LLC·Filed 2017·Granted Nov 20, 2018·12 cites·20 claims
- 3490US9339772B1Using vortex rings to deliver gases at a distanceELWHA LLC·Filed 2015·Granted May 17, 2016·4 cites·33 claims
- 3590US9261218B2Pipeline leak sealing system and methodELWHA LLC·Filed 2013·Granted Feb 16, 2016·9 cites·36 claims
- 3689US9973111B2Graphene sheet and nanomechanical resonatorELWHA LLC·Filed 2016·Granted May 15, 2018·2 cites·35 claims
- 3789US9909774B2Systems and methods for regulating an environmental variable within a target zone having multiple inhabitantsELWHA LLC·Filed 2015·Granted Mar 6, 2018·4 cites·31 claims
- 3888US9659734B2Electronic device multi-layer graphene gridELWHA LLC·Filed 2015·Granted May 23, 2017·5 cites·29 claims
- 3988US9364178B2Robotic vehicle controlELWHA LLC·Filed 2013·Granted Jun 14, 2016·9 cites·32 claims
- 4087US10575476B2Reflective articles and methods for increasing photosynthesisELWHA LLC·Filed 2016·Granted Mar 3, 2020·4 cites·19 claims
- 4187US10146222B2Driver training in an autonomous vehicleELWHA LLC·Filed 2016·Granted Dec 4, 2018·5 cites·24 claims
- 4287US9741215B2Wearable haptic feedback devices and methods of fabricating wearable haptic feedback devicesELWHA LLC·Filed 2015·Granted Aug 22, 2017·15 cites·33 claims
- 4386US9794544B2Unauthorized viewer detection system and methodELWHA LLC·Filed 2015·Granted Oct 17, 2017·4 cites·34 claims
- 4486US9488482B2Systems and methods for adjusting a contour of a vehicle based on a protrusionELWHA LLC·Filed 2013·Granted Nov 8, 2016·8 cites·18 claims
- 4585US10171677B2Systems and methods for monitoring sound during an in-building emergencyELWHA LLC·Filed 2017·Granted Jan 1, 2019·3 cites·25 claims
- 4685US9754496B2System and method for management of airspace for unmanned aircraftELWHA LLC·Filed 2014·Granted Sep 5, 2017·36 cites·76 claims
- 4784US9698558B2Method and system for pumping of an optical resonatorELWHA LLC·Filed 2016·Granted Jul 4, 2017·2 cites·20 claims
- 4883US10348948B2Mobile device for requesting the capture of an imageELWHA LLC·Filed 2015·Granted Jul 9, 2019·3 cites·29 claims
- 4983US10166466B2Feedback for enhanced situational awarenessELWHA LLC·Filed 2015·Granted Jan 1, 2019·6 cites·34 claims
- 5083US9919797B2System and method for operation and management of reconfigurable unmanned aircraftELWHA LLC·Filed 2014·Granted Mar 20, 2018·33 cites·32 claims
Showing the top 50 of 221 patent records by PatentIndex Score.
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